Scientific Diagnostic Study of a Longquan Celadon Phoenix-Handled Vase (Late Yuan Dynasty)

Author: Prof. Nona Dronova, Doctor of Technical Sciences
Institution: Higher School of Folk Arts, Saint Petersburg
Archive: Dronova Archive of Instrumentally Documented Chinese Ceramics
Contact: dronovanona@mail.ru

Abstract

This study presents a complete scientific and visual diagnostic examination of a rare Longquan celadon vase with phoenix-shaped handles, dated to the late Yuan Dynasty (c. 1290–1368 AD). Using macro and micro photography, kiln trace analysis, and glaze structure diagnostics, the vase is confirmed as an authentic product of the Longquan kilns. The object is documented in detail with ten annotated figures. Key features include a dense green celadon glaze, natural age crackle, dragon kiln firing traces, and a vitrified stoneware body. The study supports SEO discoverability through key terms such as "Longquan celadon," "Yuan dynasty phoenix vase," "glaze crackle diagnostics," and "Chinese ceramic authentication."

Object Identification

• Object Code: YUAN-LQ-PHX-VASE-21CM

• Title: Phoenix-handled celadon vase

• Height: 21 cm

• Origin: Zhejiang Province, China

• Date: Late Yuan Dynasty (c. 1290–1368 AD)

• Material: High-fired stoneware with green celadon glaze

• Form: Elongated vessel with S-curved handles in the form of stylized phoenix birds (fenghuang)

Figure Captions and Diagnostics

Figure 1. Longquan celadon vase with phoenix handles — full view under raking light.
The crackle pattern (crazing) in the green celadon glaze is consistent with natural aging. The S-shaped phoenix-form handles are hand-modeled, and the light pooling at edges supports high-gloss dragon kiln glazing techniques.

Figure 2. Unglazed footrim — recessed and iron-stained.
The unglazed base reveals classic signs of Longquan firing: coarse tool marks, vitrified reddish stoneware, and mineral bloom traces. Partial ash adhesion and a clear tripod setter mark confirm dragon kiln support.

Figure 3. Lower body — glaze texture and crackle detail.
The semi-matte sheen and rich celadon tone support a balanced Fe2+/Fe3+ ratio under reduction firing. Crackle fissures are irregular and deeply aged, with darkened infill consistent with natural burial or oxidation.

Figure 4. Top-down view of the foot — secondary mineralization.
The rough foot core shows heat gradients and uneven glaze termination. Areas of iron oxide mineral deposits and unglazed firing exposure authenticate period-specific kiln atmosphere.

Figure 5. Microstructure of glaze — bubble matrix and fissure.
Uniform round bubbles suggest a stable melt and slow cooling process. A single crackle vein intersects the field, filled with reddish oxides, confirming environmental hydration.

Figure 6. High-magnification view of glaze — pooled transparency and fracture.
Brilliant reflective zones highlight the glaze’s glass-phase clarity. Subsurface bubbles and diagonal fissures confirm unaltered glaze aging.

Figure 7. Glaze-body interface — iron-stained crackle and exposed matrix.
Transition between glaze and exposed ceramic body shows embedded particles and unrefined clay, confirming Longquan raw material sources.

Figure 8. Intersecting crackle network — oxidized fissures and ash nodules.
Natural multi-directional crackle structure filled with ferrous material. Kiln ash inclusions confirm early firing environments.

Figure 9. Unglazed foot under magnification — mineral inclusions and firing texture.
Granular surface with embedded iron and vitrified zones characteristic of 13th–14th century Longquan production.

Figure 10. Interior mouth and rim view — glaze pooling and radial crackle.
The thickening of glaze at the curve and oxidized radial crackle around the mouth reflect traditional Longquan glaze flow and thermal contraction behavior.

Scientific Conclusion

The vessel displays all diagnostic traits of genuine Longquan celadon ware from the late Yuan dynasty: glaze behavior, body material, firing evidence, and aging patterns. The combination of sculptural form, rare phoenix handles, and advanced glaze confirms its status as a high-status ceremonial or courtly item.

The piece has no signs of modern restoration, synthetic staining, or overglaze repair, affirming its authenticity. It is recommended as a reference specimen for museum comparative study and ceramic authentication protocols.

Keywords (SEO optimized)

Longquan celadon, Yuan dynasty phoenix vase, Chinese ceramics authentication, glaze crackle microstructure, dragon kiln firing traces, Phoenix-handled vase, Song-Yuan ceramics, stoneware footrim analysis, Chinese kiln archaeology, green celadon glaze, scientific ceramic attribution, Dronova Archive, high-fired Chinese stoneware

Provenance and Documentation

• Acquired in the USA, 2014

• Held in private collection of Prof. Nona Dronova

• Published and archived with full scientific support and microdocumentation

This record is permanently archived in the Dronova Archive of Instrumentally Documented Chinese Ceramics and made publicly available for international scholarly reference.